Bumper



June '9, 1925.

W. F. MARTIN BUMPER Filed Aug. 2, 1924 )0 K J m m mww 1 v} 1 M. W m 0:\/ 1

@w a 9\ 2 l 5 J 5 wwww J 1 1 ATTORN EY WITNESS:

Patented June 9,

,UNITED STATES PATENT OFFICE.

BUMPER.

Application filed August 2, 1924. Serial No. 729,822.

To all whom it may concern:

Be it known that 1, human P. MARTIN, a citizen of the United States, residing at Monongahela, in the county of lVashington and State of Pennsylvania, have invented new and useful Improvements in Bumpers, of which the following is a specification.

This invention relates to bumpers of the character used on automobiles, and contemplates a structure designed to possess maximum strength and durability, and at the same time afford the desired resiliency or yieldability necessary in a device of this character.

The nature and advantages of the invention will be better understood when the following detailed description is read in connection with the accompanying drawings, the invention residing in the construction, combination and arrangement of parts as claimed.

In the drawings forming part of this application, like numerals of reference indicate similar parts in the several views, and wherein Figure 1 is a front elevation of the bumper constructed in accordance with the present invention.

Figure 2 is a top plan view.

Figure 3 is a fragmentary detail view showing the connection between the respective sections of the rear bar.

Figure 4 is a sectional view taken on line 1- 1- of Figure 2.

Figure 5 1s a sect1onal view taken on l1ne 5 5 of Figure 2.

The bumper forming the subject matter of the present invention is made up of three flat bars, and possesses the same general outline of configuration of other bumpers in present day use. However the arrangement of the various bars is such as to give the bumper maximum strength and durability, without sacrificing the necessary 1'(: silieucy or yieldability which a device of this kind should possess, in order to minimize injury to the bumper or object as the result of an impact between such parts. Referring to the drawing, 10 represents two front bars which are arranged one above the other in. spaced relation, the third or rear bar of the bumper being preferably made up of two parts indicated at 11 and 12 respectively and clearly shown in Figure 2. This sectional rear bar is adapted to be arranged in a plane between the front bars 10, while the corre spending outer extremities of all of the bars are connected together by knucklesof ordinary well known construct-ion. In other words the outerends of the front bars 10 terminate in loops 13, while the outer ends of the rear bar terminate to provide loops 1 1 which are arranged directly between and in a line with the loops 13. to receive the knuckle bolt 15.

Now, upon inspection of Figure 2 it will be observed that both sections of the rear bar are identical in construction, and each section is folded at an appropriate point in its length to provide a laterally and forwardly extended end portion 16 which terminates in the space between the front bars 10. These extremities of course constitute the adjacent inner extremities of the respective sections of the rear bar", and these sections are connected together by means of an inverted Ushaped element 17 secured to a base plate 18, each limb of the U-shaped member being received by the adjacent section of the rear bar as shown in Figures 2 and The free extremities of the end portions 16 are arranged in the space between the front bars 10, and are held positioned therebetween by means of clamping plates 19 which are secured to the said extremity by a bolt 20 as shown in Figure 5, the plates 19 being of a size to extend above and below the adjacent longitudinal edges of the front bars 10, and at opposite'sides thereof. The plates 19 can be clamped to the bars 10 in order to hold the end portions 16 of the sections of the rear bar fixed relatively to the front bars 10, or the plates 19 can be tightened to allow a slight sliding movement of the end portion 16 longitudinally of the bars 10, when the bumper comes in contact with an obstacle with suflicient force to cause the end portions 16 and the bars 10 to flex. The end portions 16 of the rear bar sections are arranged to materially strengthen the bumper as a whole, and at the same time afford the bumper a maximum degree of resiliency or yieldability.

While it is believed that from the foregoing description, the nature and advantages of the invention will be readily apparent, I desire to have it understood that I do not limit myself to what is herein shown and described, and that such chan es may be resorted to when desired as all within the scope of what is claimed.

What I claim is:

1. A bumper of the character described comprising spaced upper and lower bars, and an intermediate sectional bar arranged rearwardly of the first mentioned bars, means connecting the corresponding outer extremities of all of said bars means for connecting the respective sections of the intermediate bar together, and means connecting the inner extremities of said sections with said spaced bars.

2. A bumper of the character described comprising spaced upper and lower front bars, a sectional rear bar, means connecting the corresponding outerextremities of all of said bars, said sections of the rear bar being folded upon themselves to provide oppositely extended inner end portions, and means connecting saidvend portiouwith said outer bars.

3. A bumper of the character described comprising spaced upper and lower front bars asectional rearbar, meansconnectingr the corresponding outer extremities of all of said-bars, said sections of the rearbar being folded upon themselvestoqprovide oppositely disposed 1111181"Cl'ltl'POI'tlODS terminating in the space between the said trout bars -1neans for securing said-extremities to the front bars, and means connecting the respective sections of the rear bar together.

4. A bumper of the character described comprising spaced upper and lower tront bars, a sectional rear bar, means for connecting the COli'GSPOI'ldlHg outer 'QXtI'OIi'Ht IQS 01' all or said bars, said sections of the rear bar being folded upon themselves toprovide oppositely'extended inner end portions terminating in the spacebetween the front bars, means including a U-shaped element stradtiling the-respective sections of the rear bars and connecting said sections together, and

WILLIAM .1 MARTIN. 

